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Menzies, who visited the North West Coast of Amer 
ica in 1787-8, and somewhat later, with Vancouver's 
expedition, was the first to observe, principally, if not 
entirely at Monterey, the remarkable Coast-lichens of 
California. Some of his specimens reached Acharius; 
but others, and among them Ramalina Menziesii, Tayl., 
remained undescribed for more than half a century. 
Having the good fortune to meet this venerable bota- 
nist in 1842, I was favoured by him with a considerable 
set of his duplicates. For other results of British ex- 
plorations, illustrating especially the Lichens of the 
coast north of California, and of the Rocky Mountains, 
a grateful acknowledgement is here due to the liberality 
of the late much-lamented Sir/TLW / Hooker ; to whose 
ever open hand I also owe an important collection made 
in connection with the Oregon Boundary Commission by 
Dr. Lyall, and a smaller one, from Palliser’s British 
North American Expedition, by Bourgeau. 
Of our own naturalists, Mr. Charles Wright, who has 
herborized, with an eye open for Lichens, in perhaps 
more countries of the globe than any other botanical 
traveller, was the earliest to attempt any special collec- 
tion in California, and though much limited (as botan- 
istf of the U. 8. North Pacific Expedition,) in time, suc- 
ceeded in making several important additions fo what 
wasknown. Mr. A. Fendler had before communicated 
to me an instructive series of Lichens collected by him 
at Santa Fe, in New Mexico; and this was followed by 
